/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraParameterDefinitionsBase.h
Stub class. Collection of UNiagaraScriptVariables to synchronize between UNiagaraScripts.
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(MinimalAPI, Abstract) class UNiagaraParameterDefinitionsBase : public [UObject](API\Runtime\CoreUObject\UObject\UObject)
FOnParameterDef...
OnParameterDefinitionsChangedDelegate
FGuid
UniqueId